/* ─────────────────────────────────────────────
   layout.css
   Site navigation, main container, section
   panel show/hide, section headers, back button.
───────────────────────────────────────────── */

/* ── Site nav ── */
.site-nav {
  background: var(--color-cream);
  border-bottom: 0.5px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  position: sticky;
  top: 0;
  z-index: 10;
  height: 52px;
}

.nav-brand {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.2px;
  color: var(--color-ink);
  text-decoration: none;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-brand:hover { text-decoration: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-ink-muted);
  text-decoration: none;
  padding: 6px 11px;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  line-height: 1;
  white-space: nowrap;
}
.nav-link:hover { background: var(--color-cream-tint); color: var(--color-ink); text-decoration: none; }
.nav-link.active { background: var(--color-cream-tint); color: var(--color-ink); }
.nav-link[data-section="fantasy"].active { color: var(--color-section-fantasy); }
.nav-link[data-section="data"].active    { color: var(--color-section-data); }
.nav-link[data-section="tools"].active   { color: var(--color-section-tools); }

/* ── Main container ── */
.site-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 48px 96px;
}

/* ── Section panels ── */
.section-panel        { display: none; }
.section-panel.active { display: block; }

/* ── Section headers (fantasy / data / tools) ── */
.section-header {
  padding: 48px 0 28px;
  margin-bottom: 36px;
  border-bottom: 0.5px solid var(--color-border);
}

.back-btn {
  font-family: inherit;
  font-size: 12px;
  font-weight: 400;
  color: var(--color-ink-subtle);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  display: block;
  margin-bottom: 20px;
  transition: color 0.15s;
}
.back-btn:hover { color: var(--color-ink); }

.section-eyebrow {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
}
.eyebrow-fantasy { color: var(--color-section-fantasy); }
.eyebrow-data    { color: var(--color-section-data); }
.eyebrow-tools   { color: var(--color-section-tools); }

.section-heading {
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.3px;
  line-height: 1.25;
  color: var(--color-ink);
}

.placeholder-text {
  font-size: 14px;
  color: var(--color-ink-subtle);
  padding: 48px 0;
}

/* ── Post article layout ── */
.post-meta {
  font-size: 11px;
  color: var(--color-ink-faint);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.post-body {
  max-width: 640px;
  font-family: Charter, "Iowan Old Style", Georgia, serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-ink-muted);
  padding-bottom: 80px;
}

.post-body p { margin-bottom: 22px; color: var(--color-ink-muted); }
.post-body h2 {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-ink);
  margin: 36px 0 14px;
}
.post-body strong { color: var(--color-ink); font-weight: 500; }

/* ── Responsive ── */
@media (max-width: 700px) {
  .site-nav  { padding: 0 20px; }
  .site-main { padding: 0 20px 80px; }

  /* Nav links are too long for mobile — landing tiles + back buttons handle navigation */
  .nav-links { display: none; }

  .section-header  { padding: 32px 0 20px; }
  .section-heading { font-size: 22px; }
}